Setup a python test framework

bin/qmk

@@ -94,4 +94,10 @@ else:
         exit(1)
 
 if __name__ == '__main__':
-    milc.cli()
+    return_code = milc.cli()
+    if return_code is False:
+        exit(1)
+    elif return_code is not True and isinstance(return_code, int) and return_code < 256:
+        exit(return_code)
+    else:
+        exit(0)